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  • Quaternary... Diagram showing the occurrence of calcareous fossils at Lake Vibysjön. Foraminifera are presented as the number of specimens/100 gram dry sediment and ostracods as the number of valves/100 gram dry sediment. LAZ = local assemblage zone. ... Department of Quaternary Research, Stockholm University, S-106 91 Stockholm, Sweden
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  • Comparison of the clay mineralogical signatures of the recent (i.e., mean for oxygen isotope stage or OIS 1) sediments of CONTINENT and Verhashagin cores with the uppermost part of short cores recovered all over the lake. The data are reported from North to South. ... Clay mineralogical assemblages of piston core CON01-605-3 on Vydrino Shoulder, piston core CON01-604-2 and pilot core CON01-604-2a on Posolsky Bank and, piston core CON01-603-2 and pilot core CON01-603-2a on Continent Ridge. The clay assemblages of two cores from the Academician ridge are shown for comparison (data from Fagel et al., 2003). The mean assemblage composition of the surface sediments of Selenga River is shown for comparison. ... List of minerals found in Baikal sediments and/or the Selenga River watershed ... Result of cluster analysis based on detrital heavy mineral compositions of samples from the studied piston cores and various Quaternary sediments in the Baikal region. The abbreviations refer to the core locations (CR=Continent Ridge, VS=Vydrino Shoulder, PB=Posolsky Bank, ZP=Zalina Proval). The numbers indicate the sampling depths in cm. ... Bulk and clay mineralogy of Recent sediments from the upper parts of gravity (GC) and piston cores collected in the various Lake Baikal sub-basins and main river tributary deltas
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  • Rhythmites and laminated facies in the Lake Enol sequence (modified from Moreno et al., 2010). From left to right, sequences include depth, sedimentological units, core photograph, facies, magnetic susceptibility, lightness, bulk density, TIC (Total Inorganic Carbon) and TOC (Total Organic Carbon) and age model. Also shown contour map and location of the sediment cores. ... A classification of Iberian Karstic lakes based on surface hydrology and sediment input. ... Distal facies (laminites and homogeneites) in Lake Banyoles. From left to right, sequence includes depth, sedimentological units, core photograph, facies, Ligthness, TIC (Total Inorganic Carbon) and TOC (Total Organic Carbon) and age model. Also included bathymetric map and location of the sediment cores. ... Clastic dominated littoral facies and massive/graded turbidites in the sedimentary sequence of Lake Taravilla (modified from Moreno et al., 2008). From left to right, sequences include depth, sedimentological units, core photograph, facies, magnetic susceptibility, lightness (core 2A) and also TIC (Total Inorganic Carbon), TOC (Total Organic Carbon) and TOC/TN ratio (core 1A) and age model. Also shown, bathymetric map and location of the sediment cores. ... Distal facies with gypsum-rich sediments (laminites) and littoral facies in Lake Estanya (modified from Morellón et al., 2009a). From left to right, sequence includes depth, sedimentological units, core photograph, facies, magnetic susceptibility, TIC (Total Inorganic Carbon), TOC (Total Organic Carbon) and TOC/TN ratio and mineralogy and age model. Also shown bathymetric maps and location of the sediment cores. ... Late Quaternary
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  • Percentages of the 15 more important species and groups of species and Shannon–Wiener H(S) diversity index of the studied samples in the sediment cores. ... Distribution of the identified Biofacies along the studied cores and correlation. ... Boundaries of the biofacies in the six cores ... Fig. 3 represents the correspondence analysis results for the 15 more significant benthic foraminiferal species and group of species of our study. The sum of all eigenvalues obtained from Correspondence Analysis (CA) is 0.83 (Table 3). The A1 axis has eigenvalue λ1 equal to 0.34 of the total dispersion of the species scores on the ordination axis, and the A2 axis has eigenvalue λ2 equal to 0.25. However, cumulative percentage variance of species–sample relations for the two axes reaches 52.87. Therefore it displays statistically relevant information and can be further used for an environmental interpretation. Species showing similar distribution patterns and related to the same environmental conditions are plotted close to each other on the CA graph. The CA plot of species scores shows the high concentration of species in the centre of the ordination diagram. Thus, these species may have their statistical optima there or alternatively may have a very weak correlation with integrated environmental parameters. Species Correspondence Analysis distinguishes the benthic foraminiferal assemblages in four clusters. The frequencies of the taxa belonging to these groups have been summed and plotted for each core (Fig. 4a–f).Table 3Eigenvalues.Value%SimilarityCumulativeEigenval 10.3430.2730.27Eigenval 20.2522.652.87Eigenval 30.1412.3365.2Eigenval 40.19.3874.58Sum0.83... The analysis of fossil sediments is based on 6 gravity cores (EYB: 1, 10, 6, 5, 7, 8) ranging in length from 113 to 255 cm and retrieved by a trawler vessel from the south shelf, slope and basinal setting of the North Evoikos Basin. Details of the cores are reported in Table 1 and depicted in Fig. 2.Table 1Details of the sediment cores: location, depth and lengthCoresLatitudeLongitudeWater depth (m)Length (cm)EYB-1023,39937938,61649581120EYB-123,3691638,63362785113EYB-623,3077738,723095186140EYB-523,28016838,71548258145EYB-723,23828938,74451375255EYB-823,17547238,770684416195... General bathymetry and coring locations in the North Evoikos Gulf. ... Details of the sediment cores: location, depth and length
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  • Changes in dose rate with depth for core LIWA/40B: (a) total dose rate; (b) potassium. ... Location map showing the Rub Al Khali and the Liwa region, with core LIWA/40B marked. The complex pattern of dune forms in the United Arab Emirates is also shown. (After Glennie, 1998; Embabi, 1991.) ... Results for dune core LIWA/40B
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  • δ18O–δ13C profiles in core sediments from Balikun Lake, and six periods of lake volume fluctuations as indicated by the δ18O and δ13C and sedimentary features over the past 150ka BP. The ages of the interval between two control points were obtained by linear interpolation. Numerals 1 through 6 are the marine OIS numbers (Imbrie et al., 1984). ... δ13C–δ18O correlation plots for two time intervals in core sediments from Balikun Lake sediments over the last 150ka BP: (a) positive correlation indicate that lake is a hydrological closed-lake after 62ka BP; and (b) hydrological open-lake intervals of 144–62ka BP are shown by weak correlation. ... Balikun Lake, northwest China, showing the location of core B194. (1) proluvial fan and platform; (2) lacustrine plain; (3) saline field; (4) piedmont plateau; (5) river and lake; and (6) core and number. ... The isotope ratios and ages of carbonate phase of the samples from the Balikun Lake core sediments ... Analytical data of different components of sediment samples from core Bl94
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  • (a) The physiography of the East Sea (courtesy by Prof. K.I. Chang, Seoul National University) and the location of four core sediments. (b) The surface- and deep-circulation patterns in the East Sea (courtesy by Dr. J.J. Park, Seoul National University). (c) The satellite view of sea surface temperature in the East Sea (courtesy by NFRDA). ... The chronostratigraphic construction of core GH99-1239 with a stratigraphic comparison to a well-dated core GH99-1232 (modified from Itaki and Ikehara, 2003). ... Downcore variation of the sedimentary organic matter δ13C and δ15N values of the four sediment cores in the East Sea. (a) GH99-1239, (b) GH99-1246, (c) KT92-13P5, and (d) 96EBP4. KT92-13P3 and 96EBP4 were partly published by Minoura et al. (1997) and Khim et al. (2007), respectively. ... The average δ13C and δ15N values of sedimentary organic matter of the core sediments ... Correlation between the δ13C and δ15N values of sedimentary organic matter measured in the four sediment cores (a) GH99-1239, (b) GH99-1246, (c) KT92-13P5, and (d) 96EBP4.
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  • Summary of bulk element concentrations and mean element partitioning of calcareous sediments in cores collected adjacent to the VFR (n=23) ... Downcore plots of the distribution in Mn (%) in the HCl-soluble, CaCO3-free phase of sediment cores collected adjacent to the VFR indicating the ages (ka) of Mn peaks in each core as calculated from interpolation of 14C and biostratigraphic data, together with the position of subtracted ash layers and ash-filled burrows. ... PCL for three components in the hot 50% HCl-soluble, CaCO3-free fraction of sediments from cores collected adjacent to the VFR, after subtraction of volcaniclastic layers. Values ≥0.14 (underlineda) are considered to have significant loadings at the 99% c.l. (n=364) ... Ages determined for cores adjacent to the VFR with 14C techniques and the depth within the cores where the 120 ka B.P. disappearance level of G. ruber (pink) is located ... Location, depth, total core recovery, length of core section studied (cmbsf=centimeters below sea floor) and dominant lithology of RV Sonne cores collected adjacent to the VFR ... hydrothermal sediments... Late Quaternary
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  • Smectite/illite and kaolinite/chlorite ratios (3-point-running means) versus 143Nd/144Nd ratios, expressed as εNd(0) values (circles) of Holocene lithogenic sediments of core GeoTü SL123 from the southern Aegean Sea. Indian monsoon intensity as indicated by the relative abundance of the upwelling indicator Globigerina bulloides (Gupta et al., 2005) is shown for comparison. Intervals of decreased monsoon intensity correspond to dry phases in East and North Africa. Black bars indicate arid intervals in the Middle Atlas of Morocco (Lamb et al., 1995). ... Data used for constructing the age model for the investigated cores GeoTü SL148 and GeoTü SL123 ... Sr- and Nd-isotopic composition of carbonate-free bulk sediment samples from core GeoTü SL123 ... 87Sr/86Sr ratios versus 143Nd/144Nd ratios, expressed as εNd(0) values, of a) lithogenic surface sediments from the Eastern Mediterranean Sea, as well as of genuine Saharan dust and Nile sediments (as compiled by Weldeab et al., 2002) and b) late Holocene sediments of core GeoTü SL123 from the southern Aegean Sea. Shaded areas and accompanying text indicate provenance and main sources of terrigenous components. Numbers in b) denote interpolated ages in ka, reflecting an overall decrease of εNd(0) values and increase of 87Sr/86Sr ratios during the past 6 ka. ... Late Quaternary... Late glacial to present variations in the ratios smectite/illite, kaolinite/chlorite and clay/silt in core GeoTü SL148, northern Aegean Sea (3-point-running means). Grey bars indicate the sapropel layers S1a and S1b. The sea level curve (m below present level; Bard et al., 1990) and the salinity curve of the Marmara Sea (compared to modern; Sperling et al., 2003) are shown for comparison. Mwp=meltwater pulse, YD=Younger Dryas, B–A=Bølling–Allerød.
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  • Abundance pattern of the sea-ice indicators Fragilariopsis curta and F. cylindrus in sediment cores PS2305-6, PS2276-4 and PS1768-8 from a W–E transect. For location of cores, see Fig. 2. ... Abundance pattern of the sea-ice indicators Fragilariopsis curta, F. cylindrus and F. obliquecostata in six sediment cores from a S–N transect across the Southern Ocean and interpretation of sea-ice extent during glacial maxima in MIS 2 and 4. For location of cores, see Fig. 2. ... Locations of sediment trap moorings and sediment cores in the Atlantic sector of the Southern Ocean. The schematic representation of frontal zones and average sea-ice distribution is according to Naval Oceanography Command Detachment (1985), Peterson and Whitworth (1989), Peterson and Stramma (1991), Orsi (1993). ... sediment trap... Combined relative abundance of Fragilariopsis curta and Fragilariopsis cylindrus in surface sediments from the Atlantic and eastern Indian sector of the Southern Ocean. For references for the location of oceanographic fronts and sea-ice distribution, see Fig. 2.
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